Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
  • B29C45/006—Joining parts moulded in separate cavities
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/1703—Introducing an auxiliary fluid into the mould
  • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B17/00—Accessories in connection with locks
  • E05B17/0004—Lock assembling or manufacturing
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B81/00—Power-actuated vehicle locks
  • E05B81/54—Electrical circuits
  • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
  • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
  • B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
  • B29C51/16—Lining or labelling
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
  • B29C65/58—Snap connection
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/76—Making non-permanent or releasable joints
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
  • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
  • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
  • B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said joining
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
  • B29K2033/04—Polymers of esters
  • B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
  • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
  • B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2307/00—Use of elements other than metals as reinforcement
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
  • B29K2309/08—Glass
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
  • B29L2031/3005—Body finishings
  • B29L2031/3029—Handgrips
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
  • E05B85/10—Handles
  • E05B85/14—Handles pivoted about an axis parallel to the wing
  • E05B85/16—Handles pivoted about an axis parallel to the wing a longitudinal grip part being pivoted at one end about an axis perpendicular to the longitudinal axis of the grip part
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49616—Structural member making
  • Y10T29/49622—Vehicular structural member making
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49815—Disassembling
  • Y10T29/49817—Disassembling with other than ancillary treating or assembling
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49826—Assembling or joining
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49826—Assembling or joining
  • Y10T29/49885—Assembling or joining with coating before or during assembling
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
  • Y10T29/49982—Coating

Definitions

• the invention relates to a method for producing an outside door handle for motor vehicles.
• Known outside door handles of motor vehicles are used for the mechanical adjustment of a latch of a locking device.
• Such type closing devices are installed in motor vehicles and serve for non-positive and / or positive locking of a motor vehicle outer door.
• Exterior door handles of the type described generally consist of a plurality of mold parts.
• an electronic unit which is part of the closing device of the motor vehicle, is integrated in these molded parts.
• the surface of the outside door handle is painted. It has proved to be disadvantageous that paint particles can come into contact with the already installed electronic unit.
• Such resulting short circuits or other types of damage can lead to partial or complete destruction of the electronics unit.
• the manufacturer of the outside door handle is thus obliged to check the electronics unit when it is installed. Any damage can not be repaired, since a removal of the electronics unit is very expensive.
• the object is achieved by a method for producing an exterior door handle for motor vehicles, the method comprising the following steps:
• the mold parts In the context of the method according to the invention, it is thus intended first to produce the mold parts from a plastic compound. From the mold parts created in this way can the outside door handle create, which, however, has no finished surface. This is done in the next process step, in which the surface of the outside door handle is painted.
• the term surface is to be understood as a matter of priority that part of the outside door handle which a user sees and / or possibly touches.
• the surface according to the invention does not necessarily comprise the complete outer surface of the door outer handle.
• the outside door handle is split again into the mold parts. Only then is the electronics unit integrated in one or more of the mold parts. Installing the electronics unit after painting the exterior door handle prevents paint particles from coming into contact with the electronics unit.
• the exterior door handle is assembled.
• the inventive method it is possible to check the electronics unit during manufacture for possible errors.
• a re-examination after the integration into the outside door handle as it was previously necessary, is superfluous by the inventive method.
• a significant reduction of the production time of the outside door handle is achieved by the inventive method.
• the separate painting of the surface of the entire exterior door handle and the subsequent installation of the electronic unit lead to a significant reduction in the throughput time in the production of door handles for motor vehicles.
• step (a) has at least the following steps:
• a plastic compound - such as a synthetic resin material - is injected in the molten state with the aid of an injection molding machine in the mold cavities. Subsequently, the plastic is pressurized in the mold cavities by means of the injection molding machine for a short predetermined period of time, for example, for 1 to 30 seconds. This supports a good reproducibility of the surfaces of the molded parts thus produced.
• the gas pressed into the mold cavity or the pressed-in liquid ensures that a cavity is formed in the molten plastic mass and this is pressed against the inner surfaces of the mold cavities.
• the plastic mass solidifies on an outer layer while a core portion of the plastic mass remains molten.
• step (a) of the method according to the invention a uniform quality in the production of the mold parts and thus the outside door handle is secured.
• a further advantageous embodiment of the method according to the invention is characterized in that the step (a) is designed such that a liquid color element in the plastic mass is introduced, wherein the plastic mass and the liquid color element are mixed in such a way that forms a homogenized potting compound, which is injected into the first and / or the second mold cavity, whereby the uniformly colored first and / or second mold parts are produced.
• the liquid color element is supplied exclusively before being injected into the mold cavity of the plastic mass, which is formed by a multiplicity of plastic granules.
• the plasticized plastic compound and the liquid color element are mixed within the injection molding machine such that a homogenized potting compound is formed, which is injected into the mold cavity, whereby a uniformly colored through mold part is produced.
• the potting compound is mixed in such a way that upon entry into the mold cavity, the potting compound has a high degree of homogenization.
• the resulting mold parts have a pleasing appearance, with any damage, such as scratches, etc. are not noticeable, since the mold part is colored in its cross section.
• step (c) the outside door handle only has to be painted with a clearcoat.
• the mold cavity has a polished surface, whereby a colored, through-dyed mold part can be achieved by the injection molding process according to the invention, the surface of which is additionally high-gloss.
• the surface of the mold cavity is polished in several steps and has a surface roughness in the final state, which is close to zero.
• the plastic granules which are introduced into the injection molding machine transparent or partially transparent, which surprisingly in combination With the liquid color element moldings are achieved with a high color brilliance.
• the liquid color element can for example be mixed with the plastic granules beforehand, with these subsequently being introduced together into the injection molding machine through the inlet region. A final mixing then takes place within the injection molding machine. It is also advantageous if the liquid color element is passed directly into the injection molding machine, in which the plastic granules are plasticized.
• plastic material for the molding all plastics are to be used, which are injection-moldable.
• Polyamides (PA), polycarbonates (PC), acrylonitrile-butadiene-styrene copolymers (ABS), polymethyl methacrylates (PMMA) or acrylonitrile-styrene-acrylic ester copolymers (ASA) are preferably used as plastic granules.
• the liquid color element is supplied at an inlet region of the mold cavities of the plastic compound.
• the injection molding machine is heated, wherein the inlet region has a temperature between 20 0 C and 80 0 C, preferably between 30 ° C and 70 0 C and more preferably between 40 ° C and 60 ° C.
• a hopper can be arranged, by means of which the plastic granules are fed into the injection molding machine. By the appropriate temperature of the inlet region, a good flowability of the plastic granules can be achieved.
• the liquid color element can likewise be introduced into the injection molding machine via the filling funnel. It is conceivable via a flexible hose, the color element of the plastic material, which is located within the injection molding machine, admit.
• the liquid color element in droplets may in this case be a concentrate which is added to the plastic compound within the injection molding machine.
• the liquid color element is continuously added to the plastic compound.
• the liquid color element in the plasticized plastic composition has a volume fraction which is less than 5%, preferably less than 2%, more preferably less than 1% and particularly preferably less than 0.5%. The said volume fraction is completely sufficient to produce mold parts with the appropriate color.
• the potting compound that is, the plasticized plastic mass with the liquid color element, within the mold cavity, a pressure of 300 bar to 700 bar.
• the evenly distributed in the injection molding machine potting is injected at a pressure of about 400 bar to 2000 bar in the mold cavity.
• a very uniform cross-linking of the color elements so that the surfaces of the finished mold parts receives a uniform color distribution. Any scratches or damage to the surface of the mold parts are largely not perceived by the viewer, since the mold part is consistently colored along its cross section.
• a further advantageous embodiment of the method according to the invention is characterized in that the plastic mass comprises glass fibers and / or carbon fibers and / or aramid fibers.
• the use of the fibers mentioned produces a molded part which has increased stability. This makes it possible to use less plastic material for the production of the outside door handle. This is particularly important for the reduction of the total mass of the motor vehicle, resulting in a reduction in fuel consumption.
• glass fiber reinforced plastics have a high degree of force on a continuous fragmentation behavior. This results in an optimal energy reduction and thus increased protection of the occupants of a motor vehicle in an accident.
• the former have in a further advantageous embodiment a latching and / or a counter-latching means.
• the latching and counter-latching means connect positively and / or non-positively.
• the individual mold parts form the entire body of the outside door handle.
• locking means may be integrally formed on one of the mold parts and engage in the counter-latching means of the cooperating mold part.
• the latching means are clip connections, which result in a positive and / or non-positive connection due to the slight flexibility of the plastic.
• step (b) comprises at least the following steps:
• the coupling lock according to the invention thus prevents the interlocking of the latching and the counter-locking means. Consequently, a simple disassembly according to step (d) of the outside door handle into its components after painting according to step (c) is possible.
• the coupling lock can be, for example, a sheet-like element which is inserted in one of the latching or counter-latching means.
• the coupling lock has a hardness which is lower than that of the mold parts or of the latching / counter-latching means so as to prevent damage to the outer surface.
• step (c) comprises at least the following steps:
• the method according to the invention described makes it possible to apply a top coat layer covering the surface of the outside door handle in a single coating process.
• a top coat layer covering the surface of the outside door handle in a single coating process.
• the surface thus produced or the lacquer layer need not be polished.
• topcoat layer is to be understood as meaning the entire paint system that covers the surface of the molded part, in particular, it can be a plurality of paint layers having different functions
• the usual adhesives are used, in particular polyurethane-based adhesives which are preferably thermally cured
• the adhesive is applied at a thickness which is below or close to a roughness depth of the mold part surface, thus preventing the adhesive from completely forming the cavities of the rough
• the paint film is then placed in the overprinting mold and placed over the outside door handle, after which the paint film is heated for a favorable flexibility and formability the surface of the component. In order to achieve a smooth surface of the paint film, this should be fixed with a slight tension.
• the subsequent curing of the adhesive is preferably carried out thermally.
• the hardening temperature should be set to a value below the gas or escape temperature of the polymeric constituents of the paint film.
• step (c) has at least the following steps: (i) that on the first and the second mold part a
• the filler coating composition contains a binder
• the binder is cured by high-energy radiation, in particular by UV radiation;
• the filler coating compositions used according to the invention can crosslink by means of high-energy radiation via a free-radical and / or cationic polymerization.
• Binders curable by means of high-energy radiation can be used in particular by binders crosslinkable by free-radical or by cationic polymerization. In the former, the action of high-energy radiation on the photoinitiators causes radicals, which then trigger the crosslinking reaction. In contrast, in cationic curing systems, irradiation with initiators generates Lewis acids, which in turn initiate the crosslinking reaction.
• the free-radically curing binders may be, for.
• to prepolymers such as poly- or oligomers having free-radically polymerizable olefinic double bonds in the molecule act.
• binders for cationically polymerizable systems for example, polyfunctional epoxy oligomers containing more than two epoxy groups in the molecule can be used.
• UV radiation sources with emissions in the wavelength range from 150 to 440 nm, in particular from 200 to 400 nm are preferably used.
• gas discharge tubes such as. B. Xenon low-pressure lamps
• pulsed and unpulsed UV laser UV spotlights
• UV-emitting diodes and black light tubes proved to be advantageous.
• an illuminance of at least 15 megalux, preferably from 20 to 80 megalux, should be generated on the surface of the coating to be cured.
• a top coat of a color coat can be applied to the surfacer coat. and / or effect basecoat and a transparent clearcoat or a topcoat of a pigmented monolayer topcoat are applied.
• the process according to the invention makes it possible to produce multilayer coatings having high hardness, high scratch resistance and very good resistance to chemicals and water.
• the individual lacquer layers show a very good intercoat adhesion, and resistance to attack against underlying or overlying lacquer layers.
• step (e) comprises at least the following steps:
• a coupling member connects the carrier element positively and / or non-positively with the mold part.
• the carrier element may be, for example, a printed circuit board (PCB) on which both the electronic components of the electronic unit and the connecting lines are arranged.
• the insulating base material of the board can be flexible or rigid.
• the coupling member may be formed as a clip element which cooperates with a counter-element in the mold part non-positively and / or positively. It is also conceivable that the carrier element has bores through which screws can be introduced, which serve to connect to the mold part.
• the electronics unit is encapsulated in a media-tight manner with a potting compound prior to installation in accordance with step (e).
• a synthetic synthetic resin which completely surrounds the electronics unit, offers itself as potting compound.
• the synthetic resin may be polyester resin, polyurethane resin, epoxy resin, silicone resin and / or vinyl ester resin.
• the mentioned resins have Good media tightness and thus prevent environmental influences such as moisture, can penetrate into the electronics unit.
• the electronic unit is integrated only after painting the outside door handle. Consequently, it makes sense to first subject the electronic unit to a functional check, then cast it by means of the potting compound and then to integrate it into the outside door handle.
• the electronic unit can also be cast with the potting compound after joining the at least two mold parts according to section (f). The potting compound fills an interior of the outside door handle completely.
• Figure 1 is a schematic representation of an outside door handle for a
• FIG. 2 shows a flow chart of the method according to the invention.
• an outside door handle system 1 10 is shown.
• the outside door handle system 10 has a base element 120 and an outside door handle 100.
• the base member 120 is integrated in a door, not shown, of a motor vehicle.
• the base member 120 is fixed by means of adhesive or screw to an inner panel of the outer door.
• the outside door handle 100 is rotatably mounted. A user, this makes it possible to pull the outside door handle 100 of the drawing plane and unlock a locking device, not shown.
• a front end 101 of the outside door handle 100 terminates with a covering sleeve 105.
• the cover sleeve 105 is also connected to the base member 120.
• an electronic unit which is actuated via a switch element 106.
• the switch element 106 is disposed on a surface of the outside door handle 100.
• Such type of switch elements 106 may serve, by way of example, to stand in wireless data communication with an electronic key, not shown.
• FIG. 2 shows a flowchart for clarifying the method according to the invention.
• a first mold part 150 and a second mold part 151 are created by injection molding 10.
• a quantity of a molten plastic mass is introduced into a plurality of mold cavities in order to fill them substantially.
• the plastic compound is pressed against the insides of the mold cavities.
• the first 150 and second mold parts 151 thus formed can be removed from the mold cavities.
• the surfaces of the mold parts 150, 151 can be produced in the context of the method according to the invention, there is generally no need to revise the outer regions or edge regions. Rather, an assembly 20 of the mold parts 150, 151 is possible, so as to form the outside door handle 100. According to the invention joins the joining 20 of the mold parts 150, 151 a painting 30 at. Because no electronic unit has yet been introduced into the mold parts 150, 151 at this time, it can not be damaged by the lacquering 30. As part of the painting 30, the surface of the outside door handle 100 is coated with a paint, so as to protect the outside door handle 100 from environmental influences and at the same time to meet aesthetic demands on the motor vehicle.
• the electronics unit is arranged on a support member and can be positively and / or non-positively connected by means of a coupling member with the mold part. As advantageous, clip-like shaped coupling links have been found.
• the outer door handles 100 in the context of the method according to the invention first painted 30 and then equipped with the electronic unit 50, it is ensured that paint residues no damage to the electronic units occur and consequently the error rate during production is significantly reduced. In addition, a significant reduction of the production time of the outside door handle is achieved by the inventive method.
• Base element lower end of the base element

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Mechanical Engineering (AREA)
• Lock And Its Accessories (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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ID=38519749

Family Applications (1)

Country Status (6)

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Citations (5)

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• 2007
  • 2007-05-08 AT AT07107690T patent/ATE437277T1/de active
  • 2007-05-08 DE DE502007001131T patent/DE502007001131D1/de active Active
  • 2007-05-08 EP EP07107690A patent/EP1990486B1/de active Active
• 2008
  • 2008-04-30 US US12/599,017 patent/US8776348B2/en not_active Expired - Fee Related
  • 2008-04-30 WO PCT/EP2008/055330 patent/WO2008135491A1/de active Application Filing
  • 2008-04-30 CN CN2008800151199A patent/CN101680239B/zh not_active Expired - Fee Related

Patent Citations (5)

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